Plans revealed for $2 billion expansion of Houston convention district

coming soon

The first phase of the Houston convention district's transformation includes the addition of GRB South, a new 700,000-square-foot convention facility. Rendering courtesy Houston First.

Mayor John Whitmire and Houston First Corporation shared a new master plan for the George R. Brown Convention Center and its surrounding area last week. The plan features expanded exhibition space, a living roof, a pedestrian plaza with access to Toyota Center and more.

The project will be funded by the state’s portion of incremental Hotel Occupancy Tax revenue growth within a three-mile radius of the GRB for 30 years, which is estimated to total about $2 billion, according to a release from Houston First.

The first phase of the project, which is slated to be completed by 2028, will focus on developing a 700,000-square-foot convention facility known as GRB South.

GRB South will feature:

  • Two exhibition halls, totaling 150,000 square feet
  • A 50,000-square-foot multipurpose hall that opens to the new Central Plaza
  • The 100,000-square-foot Central Plaza, an extension of the Avenida Plaza that will connect to Discovery Green and Toyota Center
  • Atrium flex hall totaling 25,000 square feet
  • 225,000 square feet of contiguous exhibit space
  • A 60,000-80,000-square-foot ballroom
  • Ground-level spaces for retail and restaurants
  • A central atrium, providing each level with natural light

The design of the space is inspired by the Houston area's native prairies and will use low-carbon materials, high-efficiency building systems with rainwater collection and water-reduction strategies. A living roof on top of the GRB South will also have the potential for solar integration.

"It is imperative for us to stay competitive and meet the needs of our meetings and convention customers,” Michael Heckman, president and CEO of Houston First, said in the release. “This project will not only accomplish that but will establish a gathering space that will be the epicenter for entertainment, sports, and city-wide events, accentuating our ability to capitalize on Houston's unique offerings.”

The full campus renovation is expected to wrap in 2038, and construction will be managed in phases. Houston First reports that construction should not impact events currently scheduled as GRB.

“This project is truly transformative for downtown Houston, a lasting legacy that will solidify our position as a top-tier convention and entertainment destination,” Mayor John Whitmire said in the release. “Most importantly, we are creating a space that will build community, foster connection, and shape the future of Houston.”

Explore renderings of the plans below.

Rendering courtesy Houston First.

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The Space Cities Network launched last month with the Space City as a founding member. Photo via Houston First

Houston joins newly launched 4-city, space-focused network

space cities

Four cities from around the world have teamed up on a mission to grow aeronautics, space, and astronomy.

The Space Cities Network launched last month at the International Congress and Convention Association Congress in Abu Dhabi. The first four missions to join the initiative represent four continents and include Houston; Lausanne, Switzerland; Christchurch, New Zealand; and Seoul, South Korea.

“Space is the mirror of humanity and of our community – a quest for tomorrow. A world of exploration and innovation impacting a future that needs support and guidance. Our community, working collectively with Space experts can be one of the keystones of it, and the Space Cities Network is there to help facilitate that,” Space Cities Network Co-Chair Gerald Howard, who represents Switzerland, says in a news release.

Houston First Corp. will oversee the Space City's participation in the international alliance, which was established to increase collaboration between universities, government agencies, industry and corporations.

“Houston is proud to join this international network, leveraging our rich history in space exploration to drive innovation and collaboration across the global space sector,” Michael Heckman, president and CEO of Houston First, says in the release. “As a hub for cutting-edge research and industry, we are committed to fostering partnerships that will propel the future of aeronautics and space.”

According to the new alliance, the space economy is expected to reach $1.8 trillion by 2035, and collaboration across innovation and technology is needed to reach the industry's goals.

“Cities will play an integral, legacy role as hubs for events supporting the space community, hosting conferences, summits, and meetings that bring together industry leaders, researchers, and policymakers,” Co-Chair Claire Hector-Taylor from New Zealand, says.

Houston First Corp. will oversee the Space City's participation in the international alliance. Photo courtesy of Houston First

From rethinking dry cleaning or marketing to flipping the script on pop culture events, here's who to know this week in Houston innovation. Courtesy Photos

3 Houston innovators to know this week

Who's Who

This week's batch of Houston innovators to know are all rethinking the way things are being done, from dry cleaning and marketing to pop culture events. Scroll through to see who's who in Houston innovation this week.

Safir Ali, founder and CEO of Hamper

Safir Ali leads Houston-based Hamper, which won the Rockets and BBVA Compass' LaunchPad competition. Courtesy of Hamper

It's a good week for Safir Ali, who's company just won a startup competition put on by the Houston Rockets and BBVA Compass. Hamper, his company, makes dry cleaning more convenient for customers with pick up and delivery. His parents run a dry cleaning shop and he always thought it was a bit antiquated.

"I had this 'aha' moment in 2016," Safir says. "I had graduated from Texas A&M in 2014 and was working a corporate job and the last thing on my mind was joining the family business. But I started to see all the pain points for people in dry cleaning." Learn more about Hamper here.

Allie Danziger, founder and president of Integrate Agency

When it comes to setting up a marketing budget for your startup, considering every angle is important, says Allie Danziger of Integrate Agency. Getty Images

Allie Danziger has been focused on digital marketing since before it was cool. The entrepreneur created her Houston agency 10 years ago and has been growing ever since. She wrote a guest column for InnovationMap last week about how startups and small businesses should decide on how much to spend on marketing.

"Industry research suggests spending 5 percent to 12 percent of total revenue on an annual marketing budget," she writes. "At Integrate Agency, we believe marketing spend should be determined from key data points, versus current size." Click here to read the rest of the article.

Michael Heckman, Comicpalooza president and senior vice president at Houston First

Michael Heckman shares about some exciting new aspects of Houston's 11th annual Comicpalooza. Courtesy of Houston First

It's safe to say that Michael Heckman has had a busy weekend. The 11th annual Comicpalooza took over downtown Houston this past weekend, but just because one event is over, doesn't mean Heckman or his team at Houston First Corp. is slowing down.

"Our convention sales team looks to break another record this year," Heckman tells InnovationMap. "We have a lot of major events upcoming — from the college football playoff to the men's basketball Final Four, and we'll eventually pursue another Super Bowl."

Heckman says he has some big ideas for even an innovation-focused conference. Read the rest of the Q&A with Heckman here.

From the real estate needs of the innovation ecosystem to the most promising OTC startups, here are this week's trending stories. Shobeir Ansari/Getty Images

5 most popular innovation stories in Houston this week

What's trending

The annual Offshore Technology Conference has wrapped up, but not before the Rice Alliance named 10 promising startups — most of which have headquarters or operations in Houston. Now, Comicpalooza is taking over for what is expected to be a record year. These stories and more all trended on InnovationMap — here's what else trended.

Need more than just trending news on Fridays? Subscribe to our daily newsletter that sends fresh stories straight to your inboxes every morning.

Rice Alliance names the 10 most promising startups at Houston's Offshore Technology Conference

Startups from across the world pitched at the Rice Alliance Startup Roundup at the Offshore Technology Conference. Getty Images

Over 50 different startups from across the globe gathered at the Offshore Technology Conference for the fifth annual Rice Alliance Startup Roundup event. The full day of speed pitching and presentations, hosted by Rice Alliance Managing Director Brad Burke, took place at NRG Arena on Monday, May 6.

After interacting with all the various startups, the Rice Alliance's panel of experts voted on the 10 most promising startups. Half of the companies that were recognized are based in Houston — and even more have an office or some sort of operations in town. Here's which technologies the offshore oil and gas industry has its eye on. Read the full story here.

Comicpalooza expects another record year, says Houston First Corp. executive

Michael Heckman shares about some exciting new aspects of Houston's 11th annual Comicpalooza. Courtesy of Houston First

Eleven years ago, Comicpalooza was a small event held out in Katy. Over the past few years, with the help of Houston First Corp., the three-day conference has grown to be so big, the 2019 programming will spill out of George R. Brown Convention Center and into Discovery Green, and attract over 50,000 attendees.

"These comic conventions used to just be for the hardcore pop culture fans. What we've attempted to do is make it so there's something for everyone," says Michael Heckman, Comicpalooza president and senior vice president at Houston First. "As a casual pop culture fan, there's a lot to see and do." Read the full story here.

Data Gumbo closes $6M round, Alice partners with accelerator, and more Houston innovation news

Blockchain-as-a-service company closes $6 million Series A round. Courtesy of Data Gumbo

Houston's innovation ecosystem has been busy, and the ongoing 50th anniversary of the Offshore Technology Conference has claimed a lot of attention in town lately. While I'm sure you've seen the big news pieces, like the Texas Medical Center's new details about TMC3 or WeWork's third Houston location, you may have missed some of these short stories. Read the full story here.

Houston expert shares her advice on how much startups should spend on marketing

When it comes to setting up a marketing budget for your startup, considering every angle is important. Getty Images

Industry research suggests spending 5 percent to 12 percent of total revenue on an annual marketing budget. At Integrate Agency, we believe marketing spend should be determined from key data points, versus current size. We shepherd our clients through a five-step process to calculate how much they should spend on marketing to maximize their ROI. Read the full story here.

Overheard: Panel of experts sums up the Houston innovation ecosystem's real estate needs

Houston's innovation ecosystem development is highly interconnected to the city's real estate industry. Shobeir Ansari/Getty Images

As the city and multiple entities strive to develop an innovation hub and ecosystem, real estate plays a huge role. Developing the physical space is one of the first steps to attracting companies, talent, and money to the Bayou City.

At Bisnow's annual Houston State of the Market event, five panelists heavily involved in the process of developing Houston's innovation ecosystem weighed in on the real estate needs of innovation development in Houston. Check out these powerful quotes said during the panel. Read the full story here.

Comicpalooza takes place Friday, May 9, to Sunday, May 12. Courtesy of Comicpalooza

Here's what you can expect at Houston's Comicpalooza this weekend from esports to Game of Thrones stars

Bend the knee

People from around the world will be flocking to downtown Houston by the thousands, and not just for the Astros and the Rockets. The 11th annual Comicpalooza is taking over the George R. Brown Convention Center from Friday, May 10, to Sunday, May 12.

"This major super block in downtown will be absolutely electric this weekend," Michael Heckman, Comicpalooza president, tells InnovationMap.

Last year, the convention attracted over 50,000 people from 47 states and 17 countries, and it made an economic impact of over $20 million, Heckman says. This year, with the help of Game of Thrones stars and an inaugural ESPN event, Comicpalooza should surpass last year's accomplishments.

Here's what you can expect from this weekend.

A crowd at the panel that has two Game of Thrones actresses

Emilia Clarke (left) plays Daenerys in Game of Thrones, and Nathalie Emmanuel plays her adviser and friend, Missandei. Photos courtesy of Comicpalooza

A panel on Saturday morning at 11 am will have two Game of Thrones stars — Emilia Clarke (Daenerys) and Nathalie Emmanuel (Missandei). The panel is sure to attract the masses, and the two actresses are major gets by the organization.

"To be able to get Emilia Clarke in the middle of the final season of Game of Thrones, with only two episodes to go — the hype has been unbelievable," Heckman says. "To be able to have a pop culture phenomenon like that come here to Houston — and it will be her first fan event. She's done the San Diego Comic Con, but that was more of a media event."

Both actresses also have autograph visits available for purchase. Clarke's are sold out online, but some opportunities will be made available day of.

The first ever ESPN collegiate esports competition

ESPN's inaugural esports competition for college students is premiering at Comicpalooza. Jamie McInall/Pexels

For the first time ever, ESPN is having a collegiate esports championship and chose Houston to be the place for the finals.

"We've understood the value of [esports] for Comicpalooza for a number of years. ESPN is making a big investment — it's their first ever event of this nature, but it won't be their last," Heckman says.

Students from hundreds of schools have competed to make it to the semifinals and championship in Houston, and scholarships are on the line. The weekend will have 22 teams across five video games — Hearthstone, Heroes of the Storm, Overwatch, StarCraft II, and Street Fighter V — according to ESPN. To read more about the competition, click here.

Makers on display

Anyone can check out the Comicpalooza Maker's Space — there's even a place to fix any cosplay wardrobe malfunctions. Photo via comicpalooza.com

Calling all makers — professionals or wannabes. Comicpalooza's Maker's Space is open to cosplayers, artists, engineers, scientists and everyone in between who wants to create and build using old and new technology, from small electrical parts to towering 3D printers and Lego masterpieces.

"What a lot of people don't know is there are so many interesting aspects to Comicpalooza — from literature tracks to a film festival to a makerspace," Heckman says. "There are hundreds of exhibitors on the expo showfloor, but there's an area carved out for makers."

A party on the promenade

Free concert anyone? Photo via comicpalooza.com

From 6 to 10 pm on Saturday, Avenida Houston will be transformed into an after party put on by Saint Arnold's and headlined by Icona Pop. It's free to attend, and you can get more info here.

VIPs all around

It's not just the Game of Thrones people being featured. Photos via comicpalooza.com

Comicpalooza attendees can grab photos with or autographs from over 30 different actors across major franchises — like Star Trek, Walking Dead, and so much more.

The list of actors is as follows: Emilia Clarke, Nathalie Emmanuel, Grant Gustin, Wilmer Valderrama, Dan Fogler, Gates McFadden, Michael Dorn, John Wesley Shipp, Peter Serafinowicz, Griffin Newman, Yara Martinez, Brendan Hines, Scott Speiser, Jeremy Davies, Andrew Divoff, Mira Furlan, Erick Avari and more.

Michael Heckman shares about some exciting new aspects of Houston's 11th annual Comicpalooza. Courtesy of Houston First

Comicpalooza expects another record year, says Houston First Corp. executive

Featured Innovator

Eleven years ago, Comicpalooza was a small event held out in Katy. Over the past few years, with the help of Houston First Corp., the three-day conference has grown to be so big, the 2019 programming will spill out of George R. Brown Convention Center and into Discovery Green, and attract over 50,000 attendees.

"These comic conventions used to just be for the hardcore pop culture fans. What we've attempted to do is make it so there's something for everyone," says Michael Heckman, Comicpalooza president and senior vice president at Houston First. "As a casual pop culture fan, there's a lot to see and do."

The festivities take place Friday, May 10, to Sunday, May 12, and include some big name events. Two Game of Thrones stars — Emilia Clarke (Daenerys Targaryen) and Nathalie Emmanuel (Missandei) — will be on a panel, and ESPN will host its first collegiate esports competition.

Heckman tells InnovationMap more about these big events and how Comicpalooza has transformed over the years.

InnovationMap: How the event has grown over the past decade? 

Michael Heckman: We've really worked hard to increase the impact of the event. There's a lot of out of town visitors that do come in — it has north of a $20 million economic impact every year. When you look at an event that is held during a traditionally slow period of time, it's a really big deal for the hotels and restaurants. The other part about it is when you're able to bring big stars to Houston, they're tweeting about it and posting Instagram stories about it. It does a lot to shine a spotlight on Houston's reputation and image.

IM: What are you most excited about for this year?

MH: It's a big sprawling event that takes place across all 1.2 million square feet of GRBCC. I'm excited about a few things. First, we've got the two folks from Game of Thrones. To be able to get Emilia Clarke in the middle of the final season of Game of Thrones, with only two episodes to go — the hype has been unbelievable. To be able to have a pop culture phenomenon like that come here to Houston — and it will be her first fan event. She's done the San Diego Comic Con, but that was more of a media event.

We've also got the ESPN Collegiate Esports Championship held here. We've done esports and gaming over the past few years, but it's a growth area for the event. To be able to hold that event with dozens of championships from around the country for this inaugural event is very exciting.

What a lot of people don't know is there are so many interesting aspects to Comicpalooza — from literature tracks to a film festival to a makerspace. There are hundreds of exhibitors on the expo showfloor, but there's an area carved out for makers. We have NASA, a cultural arts avenue, there's something for everyone. We're really looking forward to a blockbuster year.

IM: What did it mean for Houston to get ESPN’s collegiate esports program? 

MH: Esports is rapidly growing. That marketplace is developing very quickly. A lot of people and a lot of cities are figuring out what that means. We've understood the value of it for Comicpalooza for a number of years. ESPN is making a big investment — it's their first ever event of this nature, but it won't be their last.

IM: How did it come about?

MH: We've been talking to a number of folks across the landscape about how to best utilize the space that we have at GRBCC and find an opportunity that was a good fit for us. A couple people we were talking to out on the West Coast who connected us to the ESPN people, who happen to be the same division of ESPN that partners with the Houston Texans on a couple things. There's some synergies there, and they're familiar with Houston.

IM: How would you describe Comicpalooza's economic impact on Houston?

MH: Around 20 to 30 percent for the audience of Comicpalooza comes from outside of Houston. Last year, we had attendees from 47 states and 17 countries. It gives great exposure to the city, and the money they leave behind is valuable from an economic impact perspective. We think our numbers will be somewhat similar to last year.

If you look at the long term vision of what this could be, we have a beautiful campus for this event. We've moved some of our programming outside GRBCC onto the Avenida Plaza that connects to Discovery Green. If we have a full campus-wide event, that's something that's highly attractive. You grow that attendance, get up to 70 or 80 thousand people — that's a mega event. It's a snowball — once you get it started and then it just takes off. We're not there yet, but we've had really smart growth.

IM: How is the city as a whole preparing for the event?

MH: Houston's really good about handling events. It takes everything from the fire department to the police department and traffic control and 700 event volunteers — over 2,000 shifts. It's such a big footprint — it's kind of all hands on deck. It also looks like we'll have Astros at home and the Rockets playing game six of the playoffs at home. This major super block in downtown will be absolutely electric this weekend.

IM: What other events are you looking to bring to Houston?

MH: We'll always be chasing our conventions we have here. Our convention sales team looks to break another record this year. We have a lot of major events upcoming — from the college football playoff to the men's basketball Final Four, and we'll eventually pursue another Super Bowl. As we look to develop our portfolio of events that we manage here, there's a lot of opportunities here for events centered around innovation. There's a lot of talk around how Houston needs to have a better reputation for innovation. We've got aerospace, medical, oil and gas — what's an event we can create or partner on that could highlight Houston's innovation.

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Portions of this interview have been edited.

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These 5 trailblazing Houston startups are leading the energy transition

meet the finalists

Houston is home to a growing number of startups reshaping what it means to be called the "Energy Capital of the World."

As part of the 2026 Houston Innovation Awards, our Energy Transition Business category honors those innovative startups that are providing solutions within renewables, climatetech, clean energy, alternative materials, circular economy and more.

Five clean energy startups have been named finalists for the 2026 award. The finalists, selected by our esteemed panel of judges, range from a lower-emission steel producer to a diagnostics platform developer working to support batteries used in data centers.

Read more about these innovative businesses, their initiatives, and their inspirational founders below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Capwell Services

Methane capture company Capwell Services works to eliminate vented oil and gas emissions economically for operators. According to the company, methane emissions are vented from most oil and gas facilities due to safety protocols, and operators are not able to capture the gas cost-effectively, leading operators to emit more than 14 million metric tons of methane per year in the U.S. and Canada. Founded in 2022, Capwell specializes in low and intermittent flow vents for methane capture.

The company began as a University of Pennsylvania senior design project led by CEO Andrew Lane. It has since participated in programs with Greentown Labs, the Rice Clean Energy Accelerator and the Creative Destruction Lab Energy Cohort at Texas A&M University. The company moved to Houston in 2023 and raised a pre-seed round. It deployed two commercial units this year, according to its application.

FlowCellutions

Energytech startup FlowCellutions is developing a chemistry-agnostic diagnostics platform for flow and metal-air batteries supporting data centers and critical infrastructure. The platform is designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from approximately seven years to more than 30 years. It has deployed four paid pilots and plans to take insights from the programs to develop its next-gen sensor platform technology.

CEO Becca Segel founded the company in 2022. It is a member of Greentown Labs, and Segel was a 2025 Activate Fellow. The company has raised over $2 million in non-dilutive funding and received a $1.5 million NSF SBIR Fast-Track award earlier this year.

Hertha Metals

Hertha Metals produces lower-cost, lower-emission steel and high-purity iron. The company has developed a single-step process that uses natural gas as a direct reductant instead of metallurgical coal, which cuts production costs by more than 25 percent and emissions by up to 50 percent, according to the company. The same process produces high-purity iron needed for high-purity steels and rare earth magnets. The company says it aims to "re-industrialize America’s production of critical materials."

Hertha Metals was founded by CEO Laureen Meroueh in 2022 and emerged from stealth last year with more than $17 million in venture capital funding. The company closed a $133.65 million Series A this month and also broke ground on its $100M high-purity iron factory known as Chalyx in Conroe.

Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers, and rubbers.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch, and vice president of operations Trey Sheridan, the company has secured over $7.2M in financing and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch, and other organizations. It won in the Minority-founded Business Category in last year's Houston Innovation Awards.

Solidec

Chemical manufacturing company Solidec has developed autonomous generators that extract molecules from water and air and convert them into pure chemicals and fuels that are free of carbon emissions on-site, eliminating the need for transport, storage, and permitting. The company was founded around innovations developed by Rice University associate professor Haotian Wang.

The company was selected for the Chevron Technology Ventures’ Catalyst Program, Greentown Labs, NSF I-Corps and was part of the first cohort of the Activate Houston program. It won first place at the 2024 startup pitch competition at CERAWeek. Solidec was founded in 2023 by Wang, who serves as an advisor, CEO Ryan DuChanois, and CTO Yang Xia. It closed a $2.5 million seed round in 2025.

Houston businessman and philanthropist to receive legendary Texas award

Making History

The Texas State History Museum Foundation (TSHMF) has set the date for its 23rd annual Texas Independence Day Dinner and unveiled the 2027 recipients of its prestigious History-Making Texan Award, which includes a prominent Houston businessman.

Since 2005, the organization has honored "living Texas legends whose contributions to the state and the nation have been truly historic and exceptional in scope and nature." Past galas have recognized prominent Texas figures such as former presidents George H.W. and George W. Bush and former first ladies Barbara and Laura Bush, as well as H-E-B chairman Charles Butt, among others.

The two 2027 History-Making Texan Award recipients are Texas Historical Commission chairman, businessman, and philanthropist John L. Nau, III, and trailblazing Texas actor, director, producer, and writer Taylor Sheridan. The 2027 gala will be held at the Bullock Texas State History Museum in Austin on March 2, Texas Independence Day.

"Our honorees are national leaders whose accomplishments have elevated Texas’ distinctive place on the national and international stage," Debbie Raynor, dinner chair and TSHMF Trustee, said in a statement. "John L. Nau, III and Taylor Sheridan have each, in very different ways, helped tell the Texas story — one through the preservation of our history and treasured places, the other through the power of storytelling that has brought Texas and the American West to audiences around the world.

"Nau is the former chairman and CEO of Silver Eagle Beverages, one of the largest Anheuser-Busch distributors in the U.S. He has served as chairman of the Texas Historical Commission since 2015. Raynor said Nau's "commitment to preservation" extends further than his protection of Texas historic sites "to the stewardship and conservation of the land itself, including his bay area lodge in South Texas and his ranch in West Texas.

"[Nau's] leadership and lifelong dedication to history have earned him national recognition, but perhaps his greatest legacy is his determination to ensure that the stories and places that shaped Texas endure for generations to come," Raynor said.Quadruple-threat filmmaker Sheridan is most widely recognized for his award-winning neo-Western TV series Yellowstone and its associated spin-offs 1883, 1923, Marshals, and Dutton Ranch. Raynor hailed Sheridan for his success in bringing a "remarkable new dimension to the way the world sees Texas and the American West."

"As a creator, writer, director, and executive producer of some of television’s most successful series, he has captured the imagination of audiences across the globe while bringing the people, landscapes, traditions and enduring spirit of the West into millions of homes," she said. "And he does more than tell the Texas story — he lives it, as a native Texan, accomplished horseman and steward of two legendary Texas ranches."

A release estimates about 450 "business, political, and community leaders" attend the Texas Independence Day Dinner each year, and proceeds will benefit the Bullock Museum's educational programs and special projects.

The 2027 Texas Independence Day Dinner will take place March 2, 2027, at the Bullock Museum in Austin. A VIP reception will start at 6:30 pm, followed by a 7 pm reception, and 7:30 dinner and program.

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This article first appeared on CultureMap.com.

Houston bio-based materials startup breaks into footwear

cleaner shoes

A more sustainable shoe can’t be built on a single material swap. From the hard plastics hidden inside a heel to the material covering a sneaker’s upper, footwear is a collection of components—and each presents a different challenge for companies trying to move away from conventional, petroleum-based materials.

Houston-based Rheom Materials wants to change that equation. The biomaterials company has launched a sustainable footwear platform featuring two of its bio-based alternatives: Benree, a biodegradable plastic designed for hard internal components, and ShoraiDura, a durable leather alternative for footwear uppers.

“A shoe is not one material; it is multiple parts working together as a system. Substituting a single material has never moved the needle,” Rheom founder and CEO Zimri Hinshaw said in a news release. “Rheom wants to make it easier for brands to make a positive impact. By providing an assortment of bio-based materials, brands can change the system, not just a swatch of it.”

Benree is Rheom’s alternative to conventional hard plastics used in footwear construction. The company says it is a 100 percent USDA-certified bio-based, biodegradable material with performance comparable to acrylonitrile butadiene styrene (ABS), a widely used engineering plastic.

The material has passed SATRA testing for high-heel applications with Bared Footwear, an Australian footwear brand.

“At Bared, we're constantly on a journey to remove plastic from our shoes. At the same time, our brand won't compromise on quality for the end customer,” Millie Richards, Bared’s head of sustainability, added in the release. “From samples and testing, Rheom has proven to be solving both of those problems for us. We look forward to seeing how they develop as a company and would love to use them in our shoes.”

Rheom says it is also exploring Benree for additional internal components, including toe puffs and heel counters.

Rheom's Benree material was used for a high-heel prototype. Photo courtesy Rheom Materials

The company’s ShoraiDura material addresses another major part of shoe construction: the upper, which must withstand repeated flexing, friction and wear while maintaining its appearance.

Containing about 80 percent bio-based content, ShoraiDura is engineered as a durable leather alternative for footwear. Rheom says the material’s molecular structure is designed to deliver the strength and durability required for demanding applications.

To demonstrate how the material could be used in finished products, Rheom worked with a Los Angeles-based footwear manufacturer to create two prototypes: an athletic sneaker and a textured skater shoe, both featuring ShoraiDura uppers.

The two offerings reflect the company’s broader strategy. Rather than asking brands to evaluate a single material in isolation, Rheom is positioning its platform as a way to explore alternatives across different parts of footwear construction.

The next step is broader industry adoption. Benree’s testing with Bared Footwear and ShoraiDura’s footwear prototypes offer early examples of how the materials could be applied, while commercial use will depend on manufacturers’ evaluations and product-development decisions.

Rheom Materials is a Houston-based biomaterials company developing bio-based alternatives to petrochemical plastics. Its product portfolio includes Shorai, a leather alternative, and Benree, a hard plastic alternative.

The company debuted Shorai at the Houston Livestock Show and Rodeo in 2025 and showed a bio-based "leather" collection in Milan earlier this year. Read more here.

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